/* ==========================================================================
   TONS & YARDS - COMMERCIAL TAKEOFF UTILITY
   Engine Stylesheet: Responsive Calculator Layouts, Zero-CLS Ad Containers & Print Takeoffs
   Design System Tokens derived from Stitch Project: projects/16466004987466641586
   ========================================================================== */

:root {
  /* Brand Color Tokens */
  --ty-primary: #D97706;
  --ty-primary-hover: #B45309;
  --ty-primary-light: #FEF3C7;
  --ty-slate-900: #0F172A;
  --ty-slate-800: #1E293B;
  --ty-slate-700: #334155;
  --ty-slate-600: #475569;
  --ty-slate-500: #64748B;
  --ty-slate-200: #E2E8F0;
  --ty-slate-100: #F1F5F9;
  --ty-canvas: #F8FAFC;
  --ty-white: #FFFFFF;
  --ty-green-600: #15803D;
  --ty-green-100: #DCFCE7;
  --ty-green-50: #F0FDF4;

  /* Typography */
  --ty-font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --ty-font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --ty-font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Radius & Shadows */
  --ty-radius-sm: 0.125rem;
  --ty-radius-md: 0.25rem;
  --ty-radius-lg: 0.5rem;
  --ty-shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --ty-shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.1), 0 2px 4px -2px rgba(15, 23, 42, 0.1);
  --ty-shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.1), 0 4px 6px -4px rgba(15, 23, 42, 0.1);
}

/* Base Utility & Reset */
.ty-container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Breadcrumb Navigation */
.ty-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--ty-font-body);
  font-size: 0.8125rem;
  color: var(--ty-slate-500);
  margin-bottom: 1rem;
}
.ty-breadcrumb a {
  color: var(--ty-slate-600);
  text-decoration: none;
  transition: color 0.15s ease;
}
.ty-breadcrumb a:hover {
  color: var(--ty-primary);
}
.ty-breadcrumb-sep {
  color: var(--ty-slate-500);
}

/* Tool Header Block */
.ty-tool-header {
  margin-bottom: 1.75rem;
}
.ty-tool-header h1 {
  font-family: var(--ty-font-heading);
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--ty-slate-900);
  letter-spacing: -0.025em;
  margin-bottom: 0.75rem;
}
.ty-tool-summary {
  font-family: var(--ty-font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ty-slate-600);
  max-width: 860px;
}

/* ==========================================================================
   Zero-CLS Pre-Allocated Ad Unit Containers (Cumulative Layout Shift = 0.00)
   ========================================================================== */
.ad-slot-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  background-color: var(--ty-canvas);
  border: 1px dashed var(--ty-slate-200);
  border-radius: var(--ty-radius-md);
  margin: 1.5rem 0;
  overflow: hidden;
  position: relative;
}
.ad-slot-wrapper::before {
  content: "SPONSORED ADVERTISEMENT";
  font-family: var(--ty-font-mono);
  font-size: 0.5625rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #94A3B8;
  position: absolute;
  top: 0.25rem;
  right: 0.5rem;
  pointer-events: none;
}
.ad-leaderboard {
  min-height: 250px;
  min-width: 300px;
  width: 100%;
  max-width: 728px;
  margin-left: auto;
  margin-right: auto;
}
.ad-rectangle {
  min-height: 250px;
  min-width: 300px;
  width: 300px;
}
.ad-sidebar {
  min-height: 600px;
  min-width: 300px;
  width: 300px;
}

/* ==========================================================================
   Utility Zone: 2-Column Responsive Takeoff Grid
   ========================================================================== */
.takeoff-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 992px) {
  .takeoff-grid {
    grid-template-columns: 1.15fr 0.85fr;
  }
}

/* Left Column: Form Sheets */
.ty-form-card {
  background: var(--ty-white);
  border: 1px solid var(--ty-slate-200);
  border-radius: var(--ty-radius-md);
  box-shadow: var(--ty-shadow-sm);
  padding: 1.75rem;
}
.ty-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--ty-slate-200);
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
}
.ty-card-title {
  font-family: var(--ty-font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ty-slate-900);
  letter-spacing: -0.01em;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.ty-btn-reset {
  background: none;
  border: 1px solid var(--ty-slate-200);
  border-radius: var(--ty-radius-sm);
  padding: 0.35rem 0.65rem;
  font-family: var(--ty-font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ty-slate-500);
  cursor: pointer;
  transition: all 0.15s ease;
}
.ty-btn-reset:hover {
  background: var(--ty-slate-100);
  color: var(--ty-slate-900);
}

/* Form Controls */
.ty-form-group {
  margin-bottom: 1.25rem;
}
.ty-form-group:last-child {
  margin-bottom: 0;
}
.ty-label {
  display: block;
  font-family: var(--ty-font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ty-slate-700);
  margin-bottom: 0.375rem;
}
.ty-input-desc {
  font-size: 0.75rem;
  color: var(--ty-slate-500);
  margin-top: 0.25rem;
}
.ty-input-wrapper {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--ty-slate-200);
  border-radius: var(--ty-radius-sm);
  overflow: hidden;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  background: var(--ty-white);
}
.ty-input-wrapper:focus-within {
  border-color: var(--ty-primary);
  box-shadow: 0 0 0 2px rgba(217, 119, 6, 0.2);
}
.ty-input {
  flex: 1;
  border: none;
  outline: none;
  padding: 0.625rem 0.875rem;
  font-family: var(--ty-font-mono);
  font-size: 1rem;
  font-weight: 600;
  color: var(--ty-slate-900);
  background: transparent;
  min-width: 0;
}
.ty-unit-badge {
  background: var(--ty-slate-100);
  border-left: 1px solid var(--ty-slate-200);
  padding: 0 0.875rem;
  display: flex;
  align-items: center;
  font-family: var(--ty-font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--ty-slate-600);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  user-select: none;
}
.ty-select {
  width: 100%;
  border: 1px solid var(--ty-slate-200);
  border-radius: var(--ty-radius-sm);
  padding: 0.625rem 0.875rem;
  font-family: var(--ty-font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ty-slate-900);
  background-color: var(--ty-white);
  outline: none;
  cursor: pointer;
}
.ty-select:focus {
  border-color: var(--ty-primary);
  box-shadow: 0 0 0 2px rgba(217, 119, 6, 0.2);
}

/* Preset Pill Buttons */
.ty-preset-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-top: 0.5rem;
}
.ty-pill-btn {
  background: var(--ty-slate-100);
  border: 1px solid var(--ty-slate-200);
  border-radius: var(--ty-radius-sm);
  padding: 0.35rem 0.65rem;
  font-family: var(--ty-font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--ty-slate-700);
  cursor: pointer;
  transition: all 0.15s ease;
}
.ty-pill-btn:hover {
  background: var(--ty-slate-200);
  color: var(--ty-slate-900);
}
.ty-pill-btn.active {
  background: var(--ty-slate-900);
  color: var(--ty-white);
  border-color: var(--ty-slate-900);
}

/* Right Column: Results & Takeoff Box */
.ty-results-card {
  background: var(--ty-white);
  border: 1px solid var(--ty-slate-200);
  border-radius: var(--ty-radius-md);
  box-shadow: var(--ty-shadow-sm);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  height: fit-content;
}
@media (min-width: 992px) {
  .ty-results-card {
    position: sticky;
    top: 2rem;
  }
}

/* Primary Yield Banner */
.ty-yield-banner {
  background: var(--ty-green-50);
  border: 2px solid var(--ty-green-600);
  border-radius: var(--ty-radius-md);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  text-align: center;
}
.ty-yield-label {
  font-family: var(--ty-font-body);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ty-green-600);
  margin-bottom: 0.25rem;
}
.ty-yield-value {
  font-family: var(--ty-font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--ty-slate-900);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.ty-yield-unit {
  font-family: var(--ty-font-body);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ty-slate-600);
  margin-top: 0.25rem;
}

/* Output Data Grid */
.ty-output-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.ty-output-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.625rem 0.75rem;
  background: var(--ty-canvas);
  border: 1px solid var(--ty-slate-200);
  border-radius: var(--ty-radius-sm);
}
.ty-output-row-title {
  font-family: var(--ty-font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ty-slate-700);
}
.ty-output-row-val {
  font-family: var(--ty-font-mono);
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--ty-slate-900);
}

/* Highlight Recommendation Box */
.ty-highlight-box {
  background: #FFFBEB;
  border: 1px solid #FDE68A;
  border-radius: var(--ty-radius-sm);
  padding: 0.875rem;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  color: #92400E;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}
.ty-highlight-box strong {
  color: #78350F;
}

/* Action Buttons */
.ty-btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  min-height: 48px;
  background: var(--ty-primary);
  color: var(--ty-white);
  border: none;
  border-radius: var(--ty-radius-sm);
  font-family: var(--ty-font-heading);
  font-size: 0.9375rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background-color 0.15s ease;
  text-decoration: none;
}
.ty-btn-primary:hover {
  background: var(--ty-primary-hover);
}
.ty-btn-secondary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  min-height: 44px;
  background: var(--ty-white);
  color: var(--ty-slate-800);
  border: 1px solid var(--ty-slate-200);
  border-radius: var(--ty-radius-sm);
  font-family: var(--ty-font-body);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  margin-top: 0.75rem;
}
.ty-btn-secondary:hover {
  background: var(--ty-slate-100);
  border-color: var(--ty-slate-500);
}

/* ==========================================================================
   Zone 2 - 5: Anti-"Thin Content" Editorial Article Sections
   ========================================================================== */
.ty-editorial-zone {
  max-width: 900px;
  margin-top: 3rem;
  font-family: var(--ty-font-body);
  color: var(--ty-slate-700);
  line-height: 1.75;
}
.ty-editorial-zone h2 {
  font-family: var(--ty-font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--ty-slate-900);
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
  border-bottom: 2px solid var(--ty-slate-200);
  padding-bottom: 0.5rem;
}
.ty-editorial-zone h3 {
  font-family: var(--ty-font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ty-slate-900);
  margin-top: 1.75rem;
  margin-bottom: 0.75rem;
}
.ty-editorial-zone p {
  margin-bottom: 1.25rem;
  font-size: 1rem;
}
.ty-editorial-zone ul, .ty-editorial-zone ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}
.ty-editorial-zone li {
  margin-bottom: 0.5rem;
}

/* Math & Equation Box */
.ty-equation-box {
  background: var(--ty-canvas);
  border: 1px solid var(--ty-slate-200);
  border-left: 4px solid var(--ty-primary);
  border-radius: var(--ty-radius-sm);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
  font-family: var(--ty-font-mono);
  font-size: 0.9375rem;
  color: var(--ty-slate-900);
  line-height: 1.6;
  overflow-x: auto;
}
.ty-equation-title {
  font-family: var(--ty-font-body);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ty-primary-hover);
  margin-bottom: 0.5rem;
}

/* Structured Density & Technical Tables */
.ty-table-container {
  overflow-x: auto;
  margin: 1.75rem 0;
  border: 1px solid var(--ty-slate-200);
  border-radius: var(--ty-radius-md);
  box-shadow: var(--ty-shadow-sm);
}
.ty-tech-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--ty-white);
  font-family: var(--ty-font-body);
  font-size: 0.875rem;
}
.ty-tech-table th {
  background: var(--ty-slate-900);
  color: var(--ty-white);
  font-family: var(--ty-font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.75rem 1rem;
  text-align: left;
}
.ty-tech-table td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--ty-slate-200);
  color: var(--ty-slate-700);
}
.ty-tech-table tr:last-child td {
  border-bottom: none;
}
.ty-tech-table tr:nth-child(even) td {
  background: var(--ty-canvas);
}
.ty-tech-table td.mono {
  font-family: var(--ty-font-mono);
  font-weight: 600;
  color: var(--ty-slate-900);
}

/* Practical Field Guide Callout Cards */
.ty-field-note {
  background: var(--ty-canvas);
  border: 1px solid var(--ty-slate-200);
  border-radius: var(--ty-radius-md);
  padding: 1.25rem;
  margin: 1.5rem 0;
}
.ty-field-note-title {
  font-family: var(--ty-font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ty-slate-900);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Expandable FAQ Module */
.ty-faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  margin: 1.5rem 0;
}
.ty-faq-item {
  border: 1px solid var(--ty-slate-200);
  border-radius: var(--ty-radius-sm);
  background: var(--ty-white);
  overflow: hidden;
}
.ty-faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: none;
  border: none;
  text-align: left;
  font-family: var(--ty-font-heading);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ty-slate-900);
  cursor: pointer;
  transition: background 0.15s ease;
}
.ty-faq-trigger:hover {
  background: var(--ty-canvas);
}
.ty-faq-icon {
  font-family: var(--ty-font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--ty-primary);
  transition: transform 0.2s ease;
}
.ty-faq-item.open .ty-faq-icon {
  transform: rotate(45deg);
}
.ty-faq-answer {
  display: none;
  padding: 0 1.25rem 1.25rem 1.25rem;
  font-family: var(--ty-font-body);
  font-size: 0.9375rem;
  line-height: 1.65;
  color: var(--ty-slate-600);
}
.ty-faq-item.open .ty-faq-answer {
  display: block;
}

/* ==========================================================================
   Print Stylesheet (@media print): Clean, Professional Takeoff Sheets
   Hides ads, site chrome, buttons; formats clean branded report for jobsite
   ========================================================================== */
@media print {
  /* Hide Non-Essential Elements */
  header, footer, nav, .ty-breadcrumb, .ad-slot-wrapper, .ty-btn-primary, .ty-btn-secondary,
  .ty-btn-reset, .ty-preset-pills, .ty-faq-list, .no-print {
    display: none !important;
  }

  body {
    background: #FFFFFF !important;
    color: #000000 !important;
    font-size: 10pt;
    line-height: 1.35;
  }

  .ty-container {
    width: 100% !important;
    max-width: 100% !important;
    padding: 0 !important;
    margin: 0 !important;
  }

  /* Printable Header Banner */
  .ty-print-header {
    display: block !important;
    border-bottom: 2px solid #000000;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
  }
  .ty-print-title {
    font-size: 16pt;
    font-weight: bold;
    text-transform: uppercase;
  }
  .ty-print-meta {
    font-size: 8pt;
    color: #555555;
    margin-top: 0.25rem;
  }

  /* Force 2-Column Takeoff Layout on Paper */
  .takeoff-grid {
    display: block !important;
  }
  .ty-form-card, .ty-results-card {
    border: 1px solid #CCCCCC !important;
    box-shadow: none !important;
    padding: 0.75rem !important;
    margin-bottom: 1rem !important;
    page-break-inside: avoid;
  }

  .ty-yield-banner {
    border: 2px solid #000000 !important;
    background: #F4F4F4 !important;
    padding: 0.75rem !important;
  }
  .ty-yield-value {
    font-size: 20pt !important;
  }

  .ty-editorial-zone {
    max-width: 100% !important;
    margin-top: 1rem !important;
  }
  .ty-tech-table {
    border: 1px solid #000000 !important;
  }
  .ty-tech-table th {
    background: #000000 !important;
    color: #FFFFFF !important;
  }
}